Radiative decays of excited Lambda(Q) baryons in the bound state picture

被引：24

作者：

Chow, CK

机构：

[1] Newman Laboratory of Nuclear Studies, Cornell University, Ithaca, NY

来源：

PHYSICAL REVIEW D | 1996年 / 54卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.54.3374

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that, in the bound state picture, the Lambda(c)(2593)-->Lambda(c) gamma and Lambda(c)(2625)-->Lambda(c) gamma decays are severely suppressed. On the other hand, for their bottom counterparts, which are predicted to have masses of 5900 and 5926 MeV, respectively, they may have significant radiative branching ratios. The Lambda(b)(5926)-->Lambda(b) gamma mode possibly dominates over the strong decay mode, while the Lambda(b)(5900) resonance lies below the strong decay threshold and can only decay radiatively. The isospin allowed Lambda(Q)**-->Sigma(Q) gamma mode is expected to be small.

引用

页码：3374 / 3376

页数：3

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